Which equation represents the statement: Three times the sum of a number and 5 is -30

Answer:

f(-2) = -3

Step-by-step explanation:

[tex]f(x)=-\frac{1}{2} x^{2} +x+1[/tex]

Just plug in x = -2

[tex]f(-2)=-\frac{1}{2} (-2)^{2} -2+1[/tex]

[tex]f(-2)=-\frac{1}{2} (4) -1[/tex]

4 can be rewritten as [tex]\frac{4}{1}[/tex] or [tex]\frac{8}{2}[/tex] so it has a common denominator.

[tex]f(-2)=-\frac{1}{2} * \frac{8}{2} -1[/tex]

[tex]f(-2)=-\frac{4}{2} -1[/tex]

[tex]f(-2)=-2-1[/tex]

[tex]f(-2)=-3[/tex]

Answer:

-15 is a answere

Step-by-step explanation:

According to BODMAS(bracket of Division Multiplication Addition Sutraction) rule

5*10-5*13

50-65

-15

Answer:

yes it is

Step-by-step explanation:

pls give brainlest almost lvled up

Answer:

I believe that this is not.

It is not proportional.

Answer: 75/2

Step-by-step explanation: Math

Answer:

75/2

Step-by-step explanation:

16/30=20/x

Cross multiply

16*x=(20)*(30)

16x=600

Divide both sides by 16.

16x /16  = 600 /16

x=75/2

I hope it's right

Answer:

11

Step-by-step explanation:

Answer:

$2c ≤ $45

I believe this is the right inequality.

Answer:

your right

Step-by-step explanation:

Answer:

B what is the probability that the winner of the race ... that the winner of the race (the fastest one of the four runners) will come from Team 1? ... Setting λ 1 = 19 / 90 and λ 2 = 5 / 24 we have, P ( X 1 < X 2 ) = Z ∞ 0 Z ∞ x 1 f X 1 ( x 1 ) f X 2 ( x 2 ) ...

Step-by-step explanation:

hope this helps

Answer:

68

Step-by-step explanation:

LM   +    MN     =   LN

x + 7  + 3x + 20 = 6x - 5

           4x + 27 = 6x - 5

          -4x         -4x      

                   27 = 2x - 5

                    +5        +5

                   32  = 2x

                   ÷2   ÷2    

                    16 = x

MN: 3x + 20

      3(16) + 20

        48   + 20

              68

Answer:

3

Step-by-step explanation:

42 is 2 x 3 x 7

81 is 3 x 3 x 3 x 3

3 is the greatest common factor

Answer:

3

Step-by-step explanation:

3 is the greatest common factor of 42 and 81

Answer:

19

Step-by-step explanation:

First get rid of the brackets:

[tex]2u + 12 - 8 > 3u - 15[/tex]

Then simplify:

[tex]2u + 4 > 3u - 15[/tex]

Get all the u's on one side:

[tex]2u - 3u > - 15 - 4[/tex]

Simplify and find u:

[tex] - u > - 19[/tex]

[tex]u < 19[/tex]

Answer:

The value of x is 5.

Step-by-step explanation:

In a square, all sides are equal so you can compare the expressions to solve x :

[tex]4x - 2 = 2x + 8[/tex]

[tex]4x - 2x = 8 + 2[/tex]

[tex]2x = 10[/tex]

[tex]x = 5[/tex]

Answer:

There were 650 rabbits last year

The percentage of a quantity can be found by first changing the percent into a fraction and then multiplying it to the value of that quantity. Last year the number of rabbits was 150.

A percentage is a value that indicates the hundredth part of any quantity.

To convert percentage into a fraction it is divided by 100.

Given that,

The population of rabbit this year is 300.

The percentage of the population with respect to the last year is 200%.

Suppose the population of rabbits last year was P.

Then as per the question, following expression can be written,

200% of N = 300

⇒ (200 / 100) × N = 300

⇒ 2N = 300

⇒ N = 150

Hence, the population of the rabbits last year was 150.

To know more about percentage click on,

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9514 1404 393

Answer:

  (-5, -5)

Step-by-step explanation:

After adding (-1, -2) to the coordinates, the image point is ...

  (-4, -3) +(-1, -2) = (-5, -5)

Answer:

sknsonsknsknsknskdnksndksn?

Answer:

-6n -3

Step-by-step explanation:

I'm assuming that if you don't need the variable solved, then you need it converted? here's another form.

Step-by-step explanation:

By elimination method,

x+y=15

-x+y=5

------------

2y=20

i.e y=10

Now,

x+y=15

or, x+10=15

or, x=5

Answer:

mark on the 0, on the 7, and half way past 8

hope this helps, pls give brainliest

Step-by-step explanation:

Answer:

Step-by-step explanation:

sin(x)=cos(x) × tan(x)

=(-2√23)×(√24)

=(-2√23)×(2√6)

=(-4√138)

=(-4(2√(3×23)))

=(-8√69)

Answer:

51% (596.7) or 52% (608.4)

Step-by-step explanation:

1170 multiply by 51% or 52% and you will get as close as you can to 600. I hope this can help. I am sorry If I got it wrong or misunderstood. :) Have a nice day!

We are given the equation:

DA - 2qA = B³

Taking 'A' common on the LHS

A(D - 2q) = B³

Dividing both sides by (D - 2q)

A = B³ / (D - 2q)

Answer: a

Step-by-step explanation:

Answer:

No.

Step-by-step explanation:

If they are scaled versions of each other then the ratio of corresponding sides would be equal.

11/2 = 5.5

37/7 = 5.29

So they are not scaled versions

Answer:

no

Step-by-step explanation:

Answer:

16% of the Students

Step-by-step explanation:

[tex]\frac{124}{775} * \frac{x}{100} \\124 * 100 = 12400\\12400 / 775 = 16\\x = 16\\\frac{124}{775} *\frac{16}{100} \\[/tex]

Answer:

0.108

Step-by-step explanation:

Given that:

Number of flights reached early = 65

Number of flights reached on time = 273

Number of flights reached late = 218

Number of flights canceled = 44

To find:

The probability that a flight is early.

Solution:

First of all, let us have a look at the formula for probability of an event E.

Formula for probability of an event E can be observed as:

[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}[/tex]

Here, Event E is that the flight is early.

Number of favorable cases is equal to the number of a flights which reached early i.e. 65

Total number of cases is the total number of flights.

i.e. 65 + 273 + 218 + 44 = 600

So, the required probability is:

[tex]P(E) = \dfrac{65}{600} = \bold{0.108}[/tex]

Answer:

Each granola bar costs $0.73.

Step-by-step explanation:

11/15 = 0.73

Answer:

i think 20 is above 12 and 17 under 30 and 36 is on top of 20 the rule is .50(x) +2

Answer:

Step-by-step explanation:

c = 0.5t + 2

12 = 0.5t + 2 ⇒ 0.5t = 10 ⇒ t = 20

c = 0.5(30)  + 2 ⇒ c = 17

20 = 0.5t + 2 ⇒ 0.5t = 18 ⇒ t = 36